The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . Where tho zigzag isperceptible to tbe eye, the cur\c3 must be smoothed by drawingthem so as to bisect the zigzags, because these dioroal nit(|uaLtieswill not present fbemselves similarly in tlie future. Wh u, aa insome equatorial ports, tho diurnal tides are large, this method o(tidal prediction fails. This method of working out observations of high and low water Methodswas uot
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . Where tho zigzag isperceptible to tbe eye, the cur\c3 must be smoothed by drawingthem so as to bisect the zigzags, because these dioroal nit(|uaLtieswill not present fbemselves similarly in tlie future. Wh u, aa insome equatorial ports, tho diurnal tides are large, this method o(tidal prediction fails. This method of working out observations of high and low water Methodswas uot the earliest. In tho Mecaniquc CcUsU, bki i and v., Liplnce ol Lutreats a large mass of tidal observations by dividing thrni into yWxs,classes depending ou thoconljguratiousof Uie tidu-goneratingbodus. ;>rK,Thus he separates the two syzygial tides at foil inuon and chjri>;e Wlicwull,of moon and divides them into euuinoctial and solstitial takes into consideration*tho tides ol several days enibrat-jugthese contigurations. Ho goes through the tides at quadratureson tho same general plan. The effects of declination and parallaxand tho diurual inequalities arc similarly treated* LubbocK (iAii. i\Q. 3.—Tide-ourvo for Bombay from Iho bcftUining of tho civil year 1834, to the mldnt^ht ending Jan. 14, 1884, or Irom 12h I>ec 31, 1883, to IJb Jan. 14, 18^, astroDomicaJ timu. tuu^c Obser*«- prr-^iit llUlL 7r/i<i?,, 1S31 sq ) improved the mctlioti of Laplace by taking intoactount all the observed tides, and not merely those appertainingto crlam configurations. He divided tho observations into anumWr of classes. First, the tides are separated into parcels, onefor liich month ; then each parcel is sorted according to tho hourof the moons transit Another classification is made according todn lination ; another according to parallax; and a last for tliediurml incfpnlMKS This plan was followed in treating the tidesof London. UieM, St Helena, Plymouth, Portsmouth
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Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892
